157074661 has 2 divisors, whose sum is σ = 157074662. Its totient is φ = 157074660.

The previous prime is 157074641. The next prime is 157074667. The reversal of 157074661 is 166470751.

157074661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148693636 + 8381025 = 12194^2 + 2895^2 .

It is an emirp because it is prime and its reverse (166470751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157074661 - 2⁵ = 157074629 is a prime.

It is equal to p_8819614 and since 157074661 and 8819614 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157074661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157074667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78537330 + 78537331.

It is an arithmetic number, because the mean of its divisors is an integer number (78537331).

Almost surely, 2^157074661 is an apocalyptic number.

It is an amenable number.

157074661 is a deficient number, since it is larger than the sum of its proper divisors (1).

157074661 is an equidigital number, since it uses as much as digits as its factorization.

157074661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 157074661 is about 12532.9430302703. The cubic root of 157074661 is about 539.5545720972.

The spelling of 157074661 in words is "one hundred fifty-seven million, seventy-four thousand, six hundred sixty-one".